﻿body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

h1 {
    text-align: center;
    color: #333;
    margin-top: 30px;
}

table {
    margin: 30px auto;
    width: 80%;
    border-collapse: collapse;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}

th, td {
    padding: 12px;
    text-align: center;
    border: 1px solid #ccc;
}

th {
    background-color: #fafafa;
}

tr:nth-child(even) {
    background-color: #fff;
}

#upload_btn, #back_btn, #download_btn, #show_btn {
    display: inline-block;
    margin: 20px auto 0;
    padding: 10px 20px;
    font-size: 16px;
    color: #fff;
    border: none;
    border-radius: 5px;
    transition: all 0.3s ease-in-out;
    cursor: pointer;
    text-decoration: none;
}

#upload_btn {
    background-color: #527bbd;
}

#back_btn {
    background-color: #a6a6a6;
}

#download_btn {
    background-color: #59c2a7;
}

#show_btn {
    background-color: #d66853;
}

#upload_btn:hover, #back_btn:hover, #download_btn:hover, #show_btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

#upload_btn:active, #back_btn:active, #download_btn:active, #show_btn:active {
    transform: translateY(0);
    box-shadow: none;
}